A circular table has exactly 60 chairs around it. There are N people seated at this table in such a way that the next person to be seated must sit next to someone. The smallest possible value of N is<spanclass=′latex−bold′>(A)</span>15<spanclass=′latex−bold′>(B)</span>20<spanclass=′latex−bold′>(C)</span>30<spanclass=′latex−bold′>(D)</span>40<spanclass=′latex−bold′>(E)</span>58